LM78349

OpenCNDeep Groove Ball BearingVerified match
Geometry100%
38.1 × 73.02 × 19.84mm
Sealing100%
Open (no seal)
Load rating100%
Cr 33 kN / C₀r 19.5 kN
Speed100%
3,000 rpm (grease)
TimkenLM78349/LM78310A38.1 × 73.02 × 19.84mm
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$48.32
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Match Details

The specifications and details for why this match is correct.

Specifications

Bore diameter (d)38.1 mm
Outer diameter (D)73.02 mm
Width (B)19.84 mm
Dynamic load rating (C)33 kN
Static load rating (C₀)19.5 kN
Weight210 g
Max speed (grease)3,000 rpm
Max speed (oil)4,500 rpm
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PDF includes specs, dimensions, and cross-references for LM78349/LM78310A.

Why This Match Is Correct

✓Exact dimensional match (bore, OD, width)
✓Load ratings within tolerance
✓Seal type verified via manufacturer tables
✓Speed rating compatible

Cross-References

Every way this part is identified across brands and catalogs.

Tier-1 Brand Equivalents

BrandPart NumberSealClearanceStatus
TimkenLM78349/LM78310AOpenCNProbable
FAGLM78310AOpenCNProbable
FAGLM78349OpenCNCurrent
FAGLM78349/LM78310AOpenCNProbable
KoyoLM78310AOpenCNEquivalent
KoyoLM78349OpenCNCurrent
KoyoLM78349/LM78310AOpenCNEquivalent
NTN4T-LM78349/LM78310AOpenCNEquivalent
NTNLM78310AOpenCNEquivalent
NTNLM78349OpenCNCurrent
SKFLM78310AOpenCNEquivalent
SKFLM78349OpenCNCurrent
SKFLM78349/LM78310AOpenCNEquivalent
TimkenLM78310AOpenCNProbable
TimkenLM78349OpenCNCurrent

Technical Details & Applications

Specification variations and common equipment types.

Internal Clearance

Normal Clearance (CN)

Standard radial internal clearance. Suitable for most applications under normal operating conditions.

TemperatureUp to ~70°C operating temperature

Seal Type

Open (No Seal)

No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.

Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
  • Machine tool spindles
  • Gearboxes with oil bath lubrication
  • High-speed precision equipment

Where This Bearing Is Used

Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors

Alternative Parts

Options if this exact part isn't what you need.

Same Geometry, Different Configuration

SKF Part NumberSeal TypeClearance
LM78349/LM78310AOpen (No Seal)CN